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Erie Railroad tunnel, Bergen Hill, Jersey City, Hudson Co., New Jersey, USAi
Regional Level Types
Erie Railroad tunnelTunnel
Bergen HillHill
Jersey CityCity
Hudson Co.County
New JerseyState

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Latitude & Longitude (WGS84): 40° 43' 52'' North , 74° 3' 9'' West
Latitude & Longitude (decimal): 40.73111,-74.05250
GeoHash:G#: dr5rdyueg
Locality type:Tunnel
Köppen climate type:Cfa : Humid subtropical climate
Nearest Settlements:
Jersey City264,290 (2017)2.1km
Hoboken53,635 (2017)2.2km
New York City8,175,133 (2018)4.3km
Financial District60,976 (2017)4.5km
Weehawken14,104 (2017)5.1km

A railroad tunnel in the Bergen Hill (1857-1860), in Palisades Diabase. It runs parallel to, and 67 feet north of, the Bergan Archways open cut. Reduced from 2 tracks to 1 but still in use. Coordinates are for the eastern portal.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

8 valid minerals.

Detailed Mineral List:

Formula: Na(AlSi2O6) · H2O
Reference: Dana (1872); Amer. Museum of Nat. Hist., NY, specimens.
Reference: Dana (1872); Amer. Museum of Nat. Hist., NY, specimens.
Formula: CaCO3
Reference: Mins. of NYC & Its Environs, Vol. 3, NY Min. Club (1931), Manchester.
Formula: Mg5Al(AlSi3O10)(OH)8
Reference: Mins. of NYC & Its Environs, Vol. 3, NY Min. Club (1931), Manchester.
Clinochlore var: Diabantite
Formula: (Mg,Fe,Al)6((Si,Al)4O10)(OH)8
Reference: Mins. of NYC & Its Environs, Vol. 3, NY Min. Club (1931), Manchester.
Formula: CaB(SiO4)(OH)
Reference: Dana (1872); Amer. Museum of Nat. Hist., NY, specimens.
Formula: Na2Al2Si3O10 · 2H2O
Reference: Dana (1872); Amer. Museum of Nat. Hist., NY, specimens.
Formula: NaCa2Si3O8(OH)
Reference: Dana (1872); Amer. Museum of Nat. Hist., NY, specimens.
Formula: SiO2
Reference: Mins. of NYC & Its Environs, Vol. 3, NY Min. Club (1931), Manchester.
Quartz var: Milky Quartz
Formula: SiO2
Reference: Mins. of NYC & Its Environs, Vol. 3, NY Min. Club (1931), Manchester.
Formula: ZnS
Reference: Mins. of NYC & Its Environs, Vol. 3, NY Min. Club (1931), Manchester.
'Stilbite subgroup'
Reference: Dana (1872); Paterson, NJ, Museum specimen.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Group 4 - Oxides and Hydroxides
var: Milky Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Group 9 - Silicates
Analcime9.GB.05Na(AlSi2O6) · H2O
var: Diabantite9.EC.55(Mg,Fe,Al)6((Si,Al)4O10)(OH)8
Natrolite9.GA.05Na2Al2Si3O10 · 2H2O
Unclassified Minerals, Rocks, etc.
'Stilbite subgroup'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Group 54 - NESOSILICATES Borosilicates and Some Beryllosilicates
Borosilicates and Some Beryllosilicates with B in [4] coordination
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=3
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Analcime77.1.1.1Na(AlSi2O6) · H2O
Natrolite77.1.5.1Na2Al2Si3O10 · 2H2O
Unclassified Minerals, Mixtures, etc.
var: Diabantite
var: Milky Quartz
'Stilbite subgroup'-

List of minerals for each chemical element

H AnalcimeNa(AlSi2O6) · H2O
H Clinochlore (var: Diabantite)(Mg,Fe,Al)6((Si,Al)4O10)(OH)8
H DatoliteCaB(SiO4)(OH)
H NatroliteNa2Al2Si3O10 · 2H2O
H PectoliteNaCa2Si3O8(OH)
H ClinochloreMg5Al(AlSi3O10)(OH)8
B DatoliteCaB(SiO4)(OH)
C CalciteCaCO3
O AnalcimeNa(AlSi2O6) · H2O
O Clinochlore (var: Diabantite)(Mg,Fe,Al)6((Si,Al)4O10)(OH)8
O DatoliteCaB(SiO4)(OH)
O NatroliteNa2Al2Si3O10 · 2H2O
O PectoliteNaCa2Si3O8(OH)
O CalciteCaCO3
O Quartz (var: Milky Quartz)SiO2
O ClinochloreMg5Al(AlSi3O10)(OH)8
O QuartzSiO2
Na AnalcimeNa(AlSi2O6) · H2O
Na NatroliteNa2Al2Si3O10 · 2H2O
Na PectoliteNaCa2Si3O8(OH)
Mg Clinochlore (var: Diabantite)(Mg,Fe,Al)6((Si,Al)4O10)(OH)8
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
Al AnalcimeNa(AlSi2O6) · H2O
Al Clinochlore (var: Diabantite)(Mg,Fe,Al)6((Si,Al)4O10)(OH)8
Al NatroliteNa2Al2Si3O10 · 2H2O
Al ClinochloreMg5Al(AlSi3O10)(OH)8
Si AnalcimeNa(AlSi2O6) · H2O
Si Clinochlore (var: Diabantite)(Mg,Fe,Al)6((Si,Al)4O10)(OH)8
Si DatoliteCaB(SiO4)(OH)
Si NatroliteNa2Al2Si3O10 · 2H2O
Si PectoliteNaCa2Si3O8(OH)
Si Quartz (var: Milky Quartz)SiO2
Si ClinochloreMg5Al(AlSi3O10)(OH)8
Si QuartzSiO2
S SphaleriteZnS
Ca DatoliteCaB(SiO4)(OH)
Ca PectoliteNaCa2Si3O8(OH)
Ca CalciteCaCO3
Fe Clinochlore (var: Diabantite)(Mg,Fe,Al)6((Si,Al)4O10)(OH)8
Zn SphaleriteZnS

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on

Early Jurassic
174.1 - 201.3 Ma

ID: 2750020

Age: Early Jurassic (174.1 - 201.3 Ma)

Description: Fine-grained to aphanitic dikes; medium- to coarsegrained, subophitic discordant stock-like intrusions of dark-greenish-gray to black diabase; and plugs of dark gray, concordant to discordant sheetlike, medium- to coarse-grained, quartz-rich to albite-rich granophyre (map unit Jg). The chilled margins of diabase masses are aphanitic to very fine grained. Diabase is dense, hard, and sparsely fractured. It is composed mostly of plagioclase (An50-70), clinopyroxene (mostly augite) and magnetiteñilmenite. Accessory minerals include apatite, quartz, alkali feldspar, hornblende, titantite, and zirocon. Olivine is rare. Within about 200 m (655 ft) above and 150 m (490 ft) below the large diabase sheets, red mudstones are typically metamorphosed into indurated, bluish-gray hornfels commonly with clots or crystals of tourmaline or cordierite, whereas argillitic siltstone is metamorphosed into brittle, black, very fine grained hornfels, Sheetlike intrusions are as much as 360 to 400 m (1,180-1,310 ft) thick. Dikes range in thickness from 3 to 15 m (10-50 ft) and several kilometers (miles) long. Thickness of the stocklike bodies is unknown.

Comments: Units Jd and Jg are described together on printed map. Used same description for both, but split them into seperate units. Original map source: Dalton, R.F., Herman, G.C., Monteverde, D.H., Pristas, R.S., Sugarman, P.J., and Volkert, R.A., 1999, New Jersey Department of Environmental Protection, Bedrock Geology and Topographic Base Maps of New Jersey: New Jersey Geological Survey CD Series CD 00

Lithology: Major:{plutonic}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

201.3 - 251.902 Ma

ID: 3187752
Mesozoic intrusive rocks

Age: Triassic (201.3 - 251.902 Ma)

Stratigraphic Name: Palisades Sill

Lithology: Intrusive igneous rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by, used under Creative Commons Attribution 4.0 License


Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Dana, E.S. (1872).
Manchester, J.G. (1931), Minerals of New York City and Its Environs, Vol. 3, New York Mineralogical Club (1931), edited by Manchester.

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